Brazil ONS curtails distributed renewables for second time in 2026

Brazil's grid operator ONS ordered distributors to cut distributed generation from small hydro, biomass, wind, and solar for 2.5 hours on August 23, the second such curtailment since the procedure was created in 2025. The first occurred on June 7, also a Sunday, with 1,000 MW managed. This signals supply growth outpacing demand and raises questions about renewable integration and grid flexibility.